Treeing-iron.



No. 871,184. PATENTED NOV. 19, 1907.

G. W. RICHARDS.

TREEING IRON APPLICATION FILED AUG. 18, 1906.

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UNITED STATES PATENT OFFICE.

CHARLES W. RICHARDS, OF NEEDHAM, MASSACHUSETTS, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO THE PLANT COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF MAINE.

TREEIN'G-IRON.

Specification of Letters Patent.

Patented Nov. 19, 1907.

Application filed August 16. 1906. Serial No. 330,764.

To all whom it may concern:

- Be it known that I, CHARLES W. RIGH- ARDS, a citizen of the United States, residing in Needham, county of N orfolk, and State of Massachusetts, have invented an Improvement in Treing-Irons, of which the following description, in connection with the ac com anying drawings, is a specification, like etters on the drawings representing like parts. i w

The present invention relates to a treeing iron for treeing boots and 'shoes, and is embodied in an electrically heated iron, the purpose of the invention being not only to save current, but also to provide the iron ivith convenient meansfor regulating the mat.

The iron embodying the invention is provided with a series of resistance coils having several selective circuits whereby part or all of the coils may be included in the circuit in order to regulate the heat, instead of employing a rheostat, and the iron itself is provided with a switch located at the end'of one handle, where it is conveniently accessible to the operator.

Figure 1 is a side elevation of a treeing iron embodying the invention; Fig. 2 is a longitudinal section embodying the same, shown partly in diagram; and Fig. 3 is a detail showing a form of switch which can conveniently be employed in connection with the iron; the circuits also being shown in diagram:

Referring to Fig. 1, the iron is of the usual form having the treeing or burnishing surface A, which forms part of the outer surface of a hollow metallic box adapted to be electrically heated from within, and also having the1 operating handles B and B at opposite cm s.

In the construction shown, the leads in the cord a from the source of current are con nected to binding posts a and a inside the handle B, while the iron proper contains a series of resistance coils connected in series, five being herein shown, and mdicated by the reference letters I), c, d, e and f.

The flow of current through the resistance coils is regulated by means of a switch located at the end of the handle B and having a turn button 9, together with a contact 9 which is arranged to be moved to any of four positions, viz., into contact with the contact pieces 1, 2 and 3 consecutively, or out of contact with any of these pieces. The switch is further provided with a member g of 1nsulating material which serves to maintain the switch in any position to which it is moved, through the engagement of said member 9 with one of the contact pieces.

In the construction shown, the iron is arranged to take current through three of the resistance coils when the switch is first turned on, viz., when the contact piece g 18 in engagement with the contact member I, as shown in Fig. 3 of the drawings. In this case, the circuit flows through conductor 4 to resistance coils b, c and d, which, as indicated, are connected in series, and thence through conductor 5 to the contact piece 1, switch member 9 and return conductor 6 which passes back to the binding post a For convenience, the conductors are shown in diagram, the return conductor 6being indicated outside .of the iron. Inthe actual construction, however, all "the conductors would be contained in the hollow handles.

To increase the heating capacity, the switch is turned until the member 9 comes in contact with the contact piece 2, the conductor 5 thus being cut out, and a conductor 7 leading from the resistance coil 5 being brou ht into the circuit through the switch mem or g and conductor 6. The conductor 8 connected with the resistance 0011 f serves to complete the circuit through all the resistance coils when the switch member 9 is in contact with the contact member}. Another quarter turn of the switch carries the contact member 9 out of contact with any of'the conductors, thereby turning ofi the) current entirely.

WVhile the arrangement of circuits herein shown is practicable and economical, it is obvious that any form of switch to control the several circuits may be employed without departing from the invention. It Wlll be seen, however, that the heat may be very conveniently regulated by means of the switch connected with one of the handles of t the treeing iron itself, in fact much more conveniently than would be the case were the manipulation dependent upon a rheostat located somewhere in the circuit leading to the instrument. I claim:

1. An electrically heated treeing iron,

comprising a hollow iron portion and handles at opposite ends thereof, a series of resist ance coils arranged in said hollow portion, leading-in contacts secured to one of the handles of said iron, a switch mounted upon the opposite handle of said iron, a plurality of circuits between'said leading-in contacts and said switch, including respectively the series of resistance coils, and means for operating said switch to control the circuits through said resistance coils, whereby the heat of the iron may be readily regulated.

2. An electrically heated I treeing iron, comprising a hollow iron ortion and handles at opposite ends thereof combined with a series of resistance coils arranged in said hollow ortion and connected in series, leading-1n contacts secured to one of said handles, a series of stationary switch contacts and a movable switch contact secured switch contacts, and means for moving said movable switch contact successively into engagement with said stationary switch contacts, whereby the heat'of the iron may be readily regulated. I

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

CHARLES W. RICHARDS.

Vl itnesses H. J. LIVERMORE, JAS. J. .MALONEY. 

